101112123212 has 6 divisors (see below), whose sum is σ = 176946215628. Its totient is φ = 50556061604.

The previous prime is 101112123209. The next prime is 101112123223. The reversal of 101112123212 is 212321211101.

It is a happy number.

It is a super-2 number, since 2×101112123212² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12639015398 + ... + 12639015405.

It is an arithmetic number, because the mean of its divisors is an integer number (29491035938).

Almost surely, 2^101112123212 is an apocalyptic number.

It is an amenable number.

101112123212 is a deficient number, since it is larger than the sum of its proper divisors (75834092416).

101112123212 is a wasteful number, since it uses less digits than its factorization.

101112123212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25278030807 (or 25278030805 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 101112123212 its reverse (212321211101), we get a palindrome (313433334313).

The spelling of 101112123212 in words is "one hundred one billion, one hundred twelve million, one hundred twenty-three thousand, two hundred twelve".